Acetylene-based frequency stabilization of a laser system for potassium laser cooling

Abstract

We demonstrate a laser frequency stabilization technique for laser cooling of Potassium atoms, based on saturated absorption spectroscopy in the C-Band optical telecommunication window, using ro-vibrationel transitions of the acetylene molecule ($12$C${}_2$H${}_2$). We identified and characterized several molecular lines, which allow to address each of the potassium D2 (767 nm) and D1 (770 nm) cooling transitions, thanks to a high-power second harmonic generation (SHG) stage. We successfully used this laser system to cool the ${}^{41}$K isotope of potassium in a 2D-3D Magneto-Optical Traps setup.

References in corpus (8)

• Gray molasses cooling of ${}^{39}$K to a high phase-space density
• Potassium ground state scattering parameters and Born-Oppenheimer potentials from molecular spectroscopy
• Sub-Doppler modulation spectroscopy of potassium for laser stabilization
• Tapered-amplified AR-coated laser diodes for Potassium and Rubidium atomic-physics experiments
• Direct evaporative cooling of 41K into a Bose-Einstein condensate
• A frequency doubled 1534 nm laser system for potassium laser cooling
• Fiber laser system for cesium and rubidium atom interferometry
• Generation of high-purity, low-temperature samples of ${}^{39}$K for applications in metrology

Cited by in corpus (2)

• Long-term absolute frequency stabilization of a hybrid-integrated InP-Si3N4 diode laser
• Multi-frequency telecom fibered laser system for potassium laser cooling